Hey G'day folks,
Just wondering with 4th axis rotary, is there a software that anyone can recommend that does a continuous rotary movement. Keeps turning 360 while cutting rather than a left to right finishing at 360. I've seen a few YouTube videos where the 4th axis is turning like a lathe without the speed while the cutter is doing its job.
Also just a small show and tell, a few months ago I was asking about cutting speeds and the like for perspex. I got lucky on one job but the rest I was having issues with melting and perspex sticking to the cutter.
With the tips and suggestions I got I think I've finally cracked it and am able to do bas reliefs in perspex without any issues at all.
The job below is 20mm perspex from a type of photo frame, two pieces with magnets to hold a picture in the center. You can see the 4 magnets, haven't removed them yet. Haven't polished the perspex yet either. I did an inverted bas relief pretty much looks like a mold from the back but pretty nice I think from the front.
I used a .5 radius tapered ball nose. Before I used the ball nose what I did was at the bottom I did a 6mm vector x the width of the job and used a 3mm single flute to do some roughing just enough so the ball nose could get in and do the job.
Job took about 7 hours to finish then as a single final pass.
Spindle speed I don't know what it is in rpm, the digital display was 10000 whatever that equates too, its a quater of the 40000 display when the vfd boots. I know the VFD can be changed to display rpm last time I looked a couple of years ago now and I gave up, I couldn't make sense of the instructions. I'm only guessing 6000 rpm?!?!?! The feed was 1200mm/s it wasn't going that fast there were very few straight lines in the job.
Job size 300 x 200.
I think it came out ok. Happy to hear your thoughts.
Cheers and ty
Steve
Attachment 439218
Attachment 439220